Publication detail

Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys

DLOUHÝ, A., DOČEKALOVÁ, K., ZEMČÍK, L.

Original Title

Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys

Type

journal article - other

Language

English

Original Abstract

The present study focuses on vacuum induction melting and investment casting of gamma TiAl intermetallic alloys. The attention is mainly given to a cost-effective melting process in which a primary alloy ingot is re-melted in a ceramic crucible and cast into a ceramic shell mould. The present study introduces a 1D model of the heat flow in a system composed of a TiAl intermetallic casting, a ceramic shell mould and the vacuum furnace environment. Furthermore, a 1D model of the thermal strain in the casting-mould system during cooling to room temperature is also presented. The parametric study aimed at minimizing thermal stresses provided the optimum initial mould temperatures and cooling kinetics of the system mould-TiAl castings resulted in macroscopically sound castings that were free of macrocracks.

Keywords

Intermetallics, Gamma TiAl, Vacuum Induction Melting, Investment Casting

Authors

DLOUHÝ, A., DOČEKALOVÁ, K., ZEMČÍK, L.

RIV year

2007

Released

15. 3. 2007

Publisher

Trans Tech Publication Ltd

Location

Switzerland

ISBN

0255-5476

Periodical

Materials Science Forum

Year of study

2007

Number

539-543

State

Swiss Confederation

Pages from

1463

Pages to

1468

Pages count

6

BibTex

@article{BUT44485,
  author="Antonín {Dlouhý} and Kateřina {Dočekalová} and Ladislav {Zemčík}",
  title="Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys",
  journal="Materials Science Forum",
  year="2007",
  volume="2007",
  number="539-543",
  pages="1463--1468",
  issn="0255-5476"
}